code: def test_barplot_basic(df_fruits):
      "Basic Test for Barplot"
  
      # Create Scatterplot:
      arguments = dict(
          ylabel="Price per Unit [€]",
          title="Fruit prices per Year",
          alpha=0.6,
          show_figure=False,
      )
  
      p_bar = df_fruits.plot_bokeh(kind="bar", **arguments)
      p_bar_accessor = df_fruits.plot_bokeh.bar(**arguments)
  
      p_bar_pandas_backend = df_fruits.plot(kind="bar", **arguments)
      p_bar_accessor_pandas_backend = df_fruits.plot.bar(**arguments)
  
      # Output plot as HTML:
      output = pandas_bokeh.row(
          [
              p_bar,
              p_bar_accessor,
              p_bar_pandas_backend,
              p_bar_accessor_pandas_backend,
          ]
      )
      with open(
          os.path.join(DIRECTORY, "Plots", "Barplot_basic.html"), "w"
      ) as f:
          f.write(pandas_bokeh.embedded_html(output))
  
      assert True
  
imports: import os
  import numpy
  import pandas
  import pytest
  import pandas_bokeh
label_desc: Use image node_id 16 for calling a global function with example usage: test_barplot_basic(df_fruits) without return types